The Nuraghe is accessed via a short corridor lined by narrow spaces known as niches, which could be used as storage rooms or to accommodate torches for night-time lighting. In the centre of the small courtyard there is a cistern, dug into the rock to a depth of 5 meters and currently dry. The three towers surrounding the main tower were originally about 5-6 meters high and had slits, or narrow windows, to let in light and air. The south-east tower is accessed directly from the courtyard, while the north-west tower is reached via a narrow 8-meter-long corridor. The north-east tower was also accessible via a short passageway, which was blocked off when the front entrance to the central tower was renovated.
The cool, dark interiors of the towers were probably used to store grain and water. Some of the towers may have had more than one level. Excavations of the Arrubiu nuraghe in Orroli have shown that some of the side towers were used for various community activities such as weaving or preparing and baking bread. In other instances, bone fragments have also been found that would seem to indicate the performance of animal sacrifices. The nuraghe served many purposes: in addition to subsistence activities, it could also host community meetings and rituals related to religious worship.
